<?php
namespace app\controller;

use app\BaseController;
use app\helpers\FileUpdate;

class Index extends BaseController
{
    use FileUpdate;
    public function index()
    {
        return '我是图片服务器';
    }

    public function hello($name = 'ThinkPHP61')
    {
        return 'hello,' . $name;
    }


    /**
     * @return \think\response\Json
     * 上传图片
     */
    public function uploadImg(){
        if (!$this->request->file('file')) {
            return $this->response(501, '请选择上传文件');
        }
        $folder = $this->request->param('folder','img');
        $file = $this->request->file('file');
        $result = $this->save($file, $folder);
        return $this->response($result);
    }

    /**
     * Notes:
     * User: liuhailong
     * DateTime: 2022/1/21 15:00
     * @return \think\response\Json
     * 获取exif
     */
    public function uploadImgExif(){
        if (!$this->request->file('file')) {
            return $this->response(501, '请选择上传文件');
        }
        $folder = $this->request->param('folder','img');
        $file = $this->request->file('file');
        $result = $this->saveExif($file, $folder);
        return $this->response($result);
    }





    public function uploadFile(){
        //跨域
        header('Access-Control-Allow-Origin: *');
        header("Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept");
        header('Access-Control-Allow-Methods: GET, POST, PUT');

        //这是TP6获取文件的方式，不对的话要修改，不然下面的$out就会报错
        $folder =  request()->file("file");;
        if ($_SERVER['REQUEST_METHOD'] == 'OPTIONS') {
            exit; // finish preflight CORS requests here
        }
        if ( !empty($_REQUEST[ 'debug' ]) ) {
            $random = rand(0, intval($_REQUEST[ 'debug' ]) );
            if ( $random === 0 ) {
                header("HTTP/1.0 500 Internal Server Error");
                exit;
            }
        }
        // header("HTTP/1.0 500 Internal Server Error");
        // exit;
        // 5 minutes execution time
        set_time_limit(5 * 60);
        // Uncomment this one to fake upload time
        usleep(5000);
        $geshi = date('Ymd');
        // Settings
        //获取根目录的方法最好是打印出来看是否正确，不然下面创建文件就会报错，确保路径正确
        $targetDir =  app()->getRootPath() . 'public/storage/video' .DIRECTORY_SEPARATOR.'file_material_tmp';            //存放分片临时目录
        if($folder){
            $uploadDir = app()->getRootPath() . 'public/storage/video' .DIRECTORY_SEPARATOR.'file_material'.DIRECTORY_SEPARATOR.$geshi;
        }else{
            $uploadDir = app()->getRootPath() . 'public/storage/video' .DIRECTORY_SEPARATOR.'file_material'.DIRECTORY_SEPARATOR.$geshi;    //分片合并存放目录
        }

        $cleanupTargetDir = true; // Remove old files
        $maxFileAge = 5 * 3600; // Temp file age in seconds
        // echo $uploadDir;
        // Create target dir
        if (!file_exists($targetDir)) {
            mkdir($targetDir,0777,true);
        }
        // Create target dir
        if (!file_exists($uploadDir)) {
            mkdir($uploadDir,0777,true);
        }
        // Get a file name
        if (isset($_REQUEST["name"])) {
            $fileName = $_REQUEST["name"];
        } elseif (!empty($_FILES)) {
            $fileName = $_FILES["file"]["name"];
        } else {
            $fileName = uniqid("file_");
        }
        $oldName = $fileName;

        // $fileName = iconv('UTF-8','gb2312',$fileName);
        // print_r("文件名:".$fileName);
        $filePath = $targetDir . DIRECTORY_SEPARATOR . $fileName;
        // $uploadPath = $uploadDir . DIRECTORY_SEPARATOR . $fileName;
        // Chunking might be enabled
        $chunk = isset($_REQUEST["chunk"]) ? intval($_REQUEST["chunk"]) : 0;
        $chunks = isset($_REQUEST["chunks"]) ? intval($_REQUEST["chunks"]) : 1;

        // Remove old temp files
        if ($cleanupTargetDir) {
            if (!is_dir($targetDir) || !$dir = opendir($targetDir)) {
                die('{"jsonrpc" : "2.0", "error" : {"code": 100, "message": "Failed to open temp directory111."}, "id" : "id"}');
            }
            while (($file = readdir($dir)) !== false) {
                $tmpfilePath = $targetDir . DIRECTORY_SEPARATOR . $file;
                // If temp file is current file proceed to the next
                if ($tmpfilePath == "{$filePath}_{$chunk}.part" || $tmpfilePath == "{$filePath}_{$chunk}.parttmp") {
                    continue;
                }
                // Remove temp file if it is older than the max age and is not the current file
                //新增判断文件是否存在，不然也会报错
                if (isset($tmpfilePath) && preg_match('/\.(part)$/', $file) && (filemtime($tmpfilePath) < time() - $maxFileAge)) {
                    unlink($tmpfilePath);
                }
            }
            closedir($dir);
        }
        // Open temp file
        // print_r('\n');

        // $filePath = iconv('UTF-8','gb2312',$filePath);
        if (!$out = fopen("{$filePath}_{$chunk}.parttmp", "wb")) {
            die('{"jsonrpc" : "2.0", "error" : {"code": 102, "message": "Failed to open output stream222."}, "id" : "id"}');
        }
        if (!empty($_FILES)) {
            if ($_FILES["file"]["error"] || !is_uploaded_file($_FILES["file"]["tmp_name"])) {
                die('{"jsonrpc" : "2.0", "error" : {"code": 103, "message": "Failed to move uploaded file333."}, "id" : "id"}');
            }
            // Read binary input stream and append it to temp file
            if (!$in = fopen($_FILES["file"]["tmp_name"], "rb")) {
                die('{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Failed to open input stream444."}, "id" : "id"}');
            }
        } else {
            if (!$in = fopen("php://input", "rb")) {
                die('{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Failed to open input stream555."}, "id" : "id"}');
            }
        }
        while ($buff = fread($in, 4096)) {
            fwrite($out, $buff);
        }
        fclose($out);
        fclose($in);
        rename("{$filePath}_{$chunk}.parttmp", "{$filePath}_{$chunk}.part");
        $index = 1;
        $done = true;
        for( $index = 1; $index < $chunks; $index++ ) {
            if ( !file_exists("{$filePath}_{$index}.part") ) {
                $done = false;
                break;
            }
        }

        if ($done) {
            $pathInfo = pathinfo($fileName);
            $hashStr = substr(md5($pathInfo['basename']),8,16);
            $hashName = time() . $hashStr . '.' .$pathInfo['extension'];
            $uploadPath = $uploadDir . DIRECTORY_SEPARATOR .$hashName;
            if (!$out = fopen($uploadPath, "wb")) {
                die('{"jsonrpc" : "2.0", "error" : {"code": 102, "message": "Failed to open output stream666."}, "id" : "id"}');
            }
            //flock($hander,LOCK_EX)文件锁
            if ( flock($out, LOCK_EX) ) {
                for( $index = 0; $index < $chunks; $index++ ) {
                    if (!$in = fopen("{$filePath}_{$index}.part", "rb")) {
                        break;
                    }
                    while ($buff = fread($in, 4096)) {
                        fwrite($out, $buff);
                    }
                    fclose($in);
                    unlink("{$filePath}_{$index}.part");
                }
                flock($out, LOCK_UN);
            }
            fclose($out);
            $response = [
                'success'=>true,
                'oldName'=>$oldName,
                'filePath'=>'storage/video' .DIRECTORY_SEPARATOR.'file_material'.DIRECTORY_SEPARATOR.$geshi . DIRECTORY_SEPARATOR .$hashName,
//                'fileSize'=>$data['size'],
                'fileSuffixes'=>$pathInfo['extension'],          //文件后缀名
//                'file_id'=>$data['id'],
            ];
            return json($response);
        }

        // Return Success JSON-RPC response
        die('{"jsonrpc" : "2.0", "result" : null, "id" : "id"}');
    }

}
